J-W-G Posted May 7, 2012 Share Posted May 7, 2012 Hey guys Have scoured various RX7, mx5 and bmw e30 forums to see if a FC/FD3S 4pot caliper will fit either a BMW e30 260mm rotor, or an MX5 255mm rotor. So in short -RX7 4pots -Will it fit a 260mm (BMW e30) or 255mm (Mazda MX5) rotor -Fitment under 13inch rims Cheers Jesse Quote Link to comment Share on other sites More sharing options...
Raizer Posted May 7, 2012 Share Posted May 7, 2012 Are they the same as S4/5 calipers? S4/5 will work with an E28 rotor. /Just use Volvo calipers? //What engine are you planning on to need such massive brakes? Quote Link to comment Share on other sites More sharing options...
Testament Posted May 7, 2012 Share Posted May 7, 2012 I think so I have heard of something putting them on 257mm discs but will have to confirm they got it all going - you need to check disc thickness too though Quote Link to comment Share on other sites More sharing options...
J-W-G Posted May 7, 2012 Author Share Posted May 7, 2012 Are they the same as S4/5 calipers?S4/5 will work with an E28 rotor. /Just use Volvo calipers? //What engine are you planning on to need such massive brakes? Yep same as the s4/5 calipers, just different aesthetically. Volvos are so heavy! Plus for the same price of volvos I can get FD3s calipers. Planning on a 180-200hp zetec. Wanting to fit 13inch wheels so no bigger than 260mm disk. Quote Link to comment Share on other sites More sharing options...
Shandangles Posted May 7, 2012 Share Posted May 7, 2012 i know they work with a 264mm EK civic disc Quote Link to comment Share on other sites More sharing options...
J-W-G Posted May 7, 2012 Author Share Posted May 7, 2012 i know they work with a 264mm EK civic disc So there should be room to go down to the BMW e30 260mm disk? Cheers Quote Link to comment Share on other sites More sharing options...
Evan Posted May 7, 2012 Share Posted May 7, 2012 Wanting to fit 13inch wheels so no bigger than 260mm disk. Im wanting to say 260 is too big?. 250 is the biggest ive been told will fit. Im probably wrong though Quote Link to comment Share on other sites More sharing options...
Seedy Al Posted May 7, 2012 Share Posted May 7, 2012 this thread has my interest as i have s5 brakes on the front of my Datsun 1200. And want to run 13's also Quote Link to comment Share on other sites More sharing options...
Snoozin Posted May 7, 2012 Share Posted May 7, 2012 Wanting to fit 13inch wheels so no bigger than 260mm disk. Im wanting to say 260 is too big?. 250 is the biggest ive been told will fit. Im probably wrong though I've seen many a 13" wheel with a 260mm rotor tucked in. In fact I'm doing something similar, using Wilwood Dynalites. I would have thought the caliper size will limit you... those FC calipers (assuming you mean the Sumitomo 4 pots) are a large caliper and protrude past the disc diameter considerably. Quote Link to comment Share on other sites More sharing options...
fryup Posted May 7, 2012 Share Posted May 7, 2012 Mate had FC brake setup on a 626, 13in rims wouldn't fit. 14s did though, just. Quote Link to comment Share on other sites More sharing options...
Evan Posted May 7, 2012 Share Posted May 7, 2012 yea was thinking of the caliper diameter sorry. also they stick out quite a ways past the hub face depending on the rotor so may need a decent x-factor(?) on your rims to clear the caliper. Quote Link to comment Share on other sites More sharing options...
sr1600 Posted May 7, 2012 Share Posted May 7, 2012 In the middle of doing this now, but with a fc3s caliper as the they arent as wide as fd3s ones so dont protrude as far out. Went down to the 260mm bmw disc rather than the 276mm fc3s disc's so hopefully 13" standard will fit. Looking at redrilling and spacing standard backing plate like it was ment to be there. Quote Link to comment Share on other sites More sharing options...
J-W-G Posted May 8, 2012 Author Share Posted May 8, 2012 In the middle of doing this now, but with a fc3s caliper as the they arent as wide as fd3s ones so dont protrude as far out. Went down to the 260mm bmw disc rather than the 276mm fc3s disc's so hopefully 13" standard will fit.Looking at redrilling and spacing standard backing plate like it was ment to be there. Okay I thought FC3s ones were the same as FD3s just different looks? If you get it to work sr1600 post up a tech article! Did another search and found this Fd3s calipers on MX5 255mm rotor! -http://www.cardomain.com/ride/186566/1994-mazda-miata-mx-5 -http://forum.miata.net/vb/showthread.php?t=204424 Quote Link to comment Share on other sites More sharing options...
J-W-G Posted May 8, 2012 Author Share Posted May 8, 2012 Also had a search on pads for the RX 7, Volvo 4pots pads RX 7 -http://www.bendix.co.nz/catalogue/8568 Pad measures 107 x 68 x 14 Volvo 4pots -http://www.bendix.co.nz/catalogue/10730 Pad measures 98 x 60 x 16 Volvo fit the e30 nicely, so will the increased area of the FC/FD pads be of any hassle? Quote Link to comment Share on other sites More sharing options...
Testament Posted May 8, 2012 Share Posted May 8, 2012 FD/FC have the same lug mount spacing and I think the same disc thickness. have not found info on if the pad sizes are the same yet Quote Link to comment Share on other sites More sharing options...
J-W-G Posted May 8, 2012 Author Share Posted May 8, 2012 FD/FC have the same lug mount spacing and I think the same disc thickness. have not found info on if the pad sizes are the same yet Same pads Testament Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted May 8, 2012 Share Posted May 8, 2012 The DBA (if i remember correctly) website is awesome for comparing and figuring out disk sizes and spacing from hub etc. You can search their disks by diameter, stud pattern, thickness ETC and then see which cars are the same or similar.. Or you can search by vehicle and see the sizes and offsets. This may help someone. There is a funny smell in my house.. fuck knows what it is. some kinda perfume... getting stronger.. cept nobodys home but me.. weird. Quote Link to comment Share on other sites More sharing options...
J-W-G Posted May 8, 2012 Author Share Posted May 8, 2012 Yeah been on there heaps. The e30 rotor is 22mm like the rx rotor and the e30 is proven on the escort. Cheers Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted May 8, 2012 Share Posted May 8, 2012 go e30 rotor. iv used them. bang the caliper hard on. then grind caliper untill wheel fits (within reason). win. Quote Link to comment Share on other sites More sharing options...
J-W-G Posted May 8, 2012 Author Share Posted May 8, 2012 Got some FD 4pots(im sure testament had a bid on them?) so will mock up a set up for them when i get them and some e30 rotors, or if anyones got any around can i borrow them? Cheers Quote Link to comment Share on other sites More sharing options...
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